transportability guidance launcher, rocket, armored

TM 55-1425-646-14

TECHN ICAL MANUAL

TRANSPORTABILITY GUIDANCE

LAUNCHER, ROCKET, ARMORED-

VEHICLE-MOUNTED: XM270

(NSN 1055-01-092-0596)

HEADQUARTERS, DEPARTMENT OF THE ARMY

AUGUST 1982

TC 55-1425-646-14

TECHNICAL MANUAL ))

NO. 55-1425-646-14 )

HEADQUARTERSDEPARTMENT OF THE ARMY

WASHINGTON, DC, 16 August 1982

TRANSPORTABILITY GUIDANCELAUNCHER, ROCKET, ARMORED-VEHICLE-MOUNTED: XM270

(NSN 1055-01 -092-0596)FOR

MULTIPLE-LAUNCH ROCKET SYSTEM(MLRS)

Paragraph PageCHAPTER 1. INTRODUCTION

Purpose and Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Definitions of Warnings, Cautions, and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Destruction of Material to Prevent 'Enemy Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Reporting of Recommendations and Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2. TRANSPORTABILITY DATASection I. General

Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

II. CharacteristicsTransportability Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Hazardous or Dangerous Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .CONUS Freight Classification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

CHAPTER 3. SAFETYGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Specific Safety Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4. AIR TRANSPORTABILITY GUIDANCEScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Maximum Use of Aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Preparation, Materials, Loading, and Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Internal and External Transport by US Army Helicopters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5. HIGHWAY TRANSPORTABILITY GUIDANCEScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Preparation, Materials, Loading, and Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6. MARINE AND TERMINAL TRANSPORTABILITY GUIDANCEScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Preparation, Materials, Loading, and Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1-11-21 -31-4

2-12-22-3

2-42-52-62-7

3-13-2

4-14-24-34-44-54-6

5-15-25-35-4

6-16-26-36-4

1-11-l1-11-1

2-1 2-12-1

2-12-32-32-3

3- 13-1

4- 14-14-l4-l4-14-1

5-l5-15-15-1

6-16-16-16-1

i

TC 55-1425-646-14

Paragraph Page

CHAPTER 7. RAIL TRANSPORTABILITY GUIDANCEScope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1 7-1Applicability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-2 7-1Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 7-3 7-1Preparation, Materials, Loading, and Unloading CONUS Railways . . . . . . . . . . . . . . . . . . . . . 7-4 7-1

Preparation, Materials, Loading. and Unloading Foreign Railways

APPENDIX A. CONVERSION TABLES . . . . . . . . . . . . . .

APPENDIX B. REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . .

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. . . . . . . . . . . . . . . . . . . 7-5 7-6

. . . . . . . . . . . . . . . . . . . A-1

. . . . . . . . . . . . . . . . . . . B-1

ii

TC 55-1425-646-14

LIST OF ILLUSTRATIONS

FigureNumber Title Page

2-12-22-34-14-25-15-25-35-46-16-26-3

6-4

6-57-l7-27-37-4

XM270, for MLRS missile system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1Left-side elevation, XM270 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Rear-end evelation, XM270 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2Tiedown diagram for XM270 in US Air Force C-141 aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Tiedown diagram for XM270 in US Air Force C-5A aircraft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2Tiedown diagram for XM270 on M172Al semitrailer (side view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Tiedown diagram for XM270 on M172Al semitrailer (end view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2Placement of shoring on M172Al semitrailer before loading XM270 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-2Blocking and tiedown detail diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Lifting diagram for XM270 by use of six-legged sling and spreader bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2Typical blocking and tiedown of XM270 in hold of general-cargo vessel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3Rear view of XM270 tied down on RORO ship showing typical securement with

patented lashing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3Typical loading of five XM270s on a LASH (59.9 ft by 29.5 ft) by use of wire rope, cable clips,

and turnbuckles, with blocking between vehicles and between vehicles and hull . . . . . . . . . . . . . . . . . . . 6-5Filling center void or XM270-to-hull void area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-5Blocking and tiedown diagram of XM270 on CONUS general-purpose flatcar (side view) . . . . . . . . . . . . . 7-3Blocking and tiedown diagram of XM270 on CONUS general-purpose flatcar (end view) . . . . . . . . . . . . . 7-3Blocking and tiedown detail diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-4Tideown diagram of XM270 on cushioned rub-rail or similar types of flatcars . . . . . . . . . . . . . . . . . . . . . . . . . 7-5

iii

TC 55-1425-646-14

CHAPTER 1INTRODUCTION

1-1. Purpose and Scope

This manual provides guidance for transporting thelauncher, rocket, armored-vehicle-mounted, XM270 (re-ferred to herein as the XM270). which is a major com-ponent of the multiple-launch rocket system. This manualalso provides technical and physical characteristics, aswell as safety considerations, for worldwide movement ofthe XM270 by the various modes of transportation.

1-2. Definitions of Warnings, Cautions, andNotes

Warnings, cautions, and notes emphasize important orcritical guidance. They are used for the following con-ditions.

a. Warning. Instructions which, if not followed, couldresult in injury to or death of personnel.

b. Caution. Instructions which, if not strictly observed,could result in damage to. or destruction of, equipment.

c. Note. A brief statementemphasize a particular operatingSO forth.

for use as necessary toprocedure, condition, and

1-3. Destruction of Material to Prevent EnemyUse

If the items being transported must be destroyed to pre-vent enemy use, they shall be destroyed in accordancewith procedures contained in TM 750--2446.

1-4. Reporting of Recommendations andComments

Users of the manual are invited to send comments andsuggested improvements, on DA Form 2028 (Recom-mended Changes to DA Publications and Blank Forms),to Commander, Military Traffic Management CommandTransportation Engineering Agency. ATTN: MTT-TRC,PO Box 6276, Newport News, VA 23606. Electricallytransmitted comments should be sent to CDR MTMCTEAFT EUSTIS VA// MTT-TRC//.

1 - 1

TC 55-1425-646-14

CHAPTER 2TRANSPORTABILITY DATA

Section I. GENERAL

2-1. ScopeThis chapter provides a general description, photograph,drawings, and transportability characteristics of theXM270.

2-2. Description

The XM270 (fig 2-1) is a lightly armored, traversablerocket launcher, platform mounted on a full-tracked car-rier vehicle. The vehicle, which has a three-person caband an armor hull, is powered by a 500-horsepower dieselengine. The engine drives an automatic transmission.which includes differential steering and braking, throughidentical left and right final drives to the track-drive huband sprocket assemblies. The suspension system has sixroad wheels per side. which are torsion-bar sprung andhydraulic dampened. Road wheel arms 1, 5, and 6 pro-vide the suspension lockout system, which stabilizes thesuspension during rocket launching operations. TheXM270 suspension lockout system will operate withengine off.

2-3. Drawings

Drawings of the XM270 (figs 2-2 and 2-3) provide datafor determining its movement by various transportationmodes.

Section Il. CHARACTERISTICS

2-4. Transportability CharacteristicsThese data apply to the item in its current configurationonly and may change.

N a t i o n a l s t o c k n u m b e r

L i n e i t e m n u m b e r

G r o u n d p r e s s u r e :

Un loaded ( cu rb we igh t )

L o a d e d , c o m b a t

T r a c k c o n t a c t a r e a

Pad con t ac t a r ea

Track type :

Pad su r f ace a r ea

P e r f o r m a n c e :

M a x i m u m s p e e d

M a x i m u m g r a d e

Max imum range a t 25 mph

Fue l capac i ty

T u r n i n g r a d i u s

Dimens ions (ope ra t i ona l ) :

L e n g t h

W i d t h

H e i g h t

A r e a

C u b e

Weigh t ;

Sh ipp ing ( l e s s c r ew , ammo,

and fue l )

W i t h c o m b a t l o a d

B r i d g e w e i g h t c l a s s i f a c t i o n

1055 01 092 0596

Z 3 7 7 2 6

4 .2 ps i (28 .95 kpa )

7 .0 ps i (48 .3 kpa)

49 .7 sq f t (4 .61 sq m)

8 .0 sq f t (0 .74 sq m)

S tee l , r ubbe r -bushed , p in - l i nk

Shoes

26.76 sq in. (19.68 sq mm)

3 8 m p h ( 6 1 . 2 k m h r )

6 0 p e r c e n t

300 mi l e s (483 km)

163 (u sab l e ) US ga l . ( 617 l i t e r s )

pivot

275 .3 In . (6 .99 m)

117.0 in. (2.97 m)

102 .9 in . (2 .61 m)

223 .7 sq f t (20 .78 sq m)

1 ,918 cu f t ( 54 .33 cu m)

42 ,750 lb (19 391 kg)

53 ,000 lb (24 040 kg)

21

Figure 2-1. XM270 for MLRS missle system.

2-1

TC 55-1425-646-14

F i g u r e 2 - 2 . L e f t - s i d e e l e v a t i o n , X M 2 7 0 .

Figure 2-3. Rear-end elevation, XM270.

2 - 2

TC 55-1425-646-14

2-5. Hazardous or Dangerous Characteristics

Unless shipped with ammunition under the provisions ofDepartment of Transportation Special Permit No. 3498(applicable to shipments during national emergency), theXM270 does not have any hazardous or dangerouscharacteristics.

NOTEThose regulations and procedures normallyassociated with vehicles containing diesel fuelshall apply.

2-6. Sensitivity

The XM270, when restrained in accordance with thismanual. can withstand shocks and vibrations associatedwith the various modes of transportation.

2-7. CONUS Freight Classification

CONUS freight classification and item number will bedetermined in accordance with chapter 211 of AR 55-355and the freight classification guide system. Classificationmust be determined and provided on the bill of ladingbefore the shipment is released to the carrier.

2-3

TC 55-1425-646-14

CHAPTER 3SAFETY

3-1. General

a. All loose items in the XM270 shall be secured inaccordance with applicable regulations.

b. The vehicle shall be driven by qualified drivers only.

c. While the vehicle is driven, its hatch cover must besecured in the fully open or fully closed position.

d. While vehicle engine is running. driver shall notleave his her station.

e. If track is thrown while vehicle is in operation,brakes shall not be applied unless absolutely necessary.Vehicle shall be allowed to coast to a stop.

f. Vehicle shall not be mounted or dismounted whenXM270 is in motion.

g. Vehicle engine shall not be operated in an enclosedarea without adequate ventilation.

3-2. Specific Safety Requirements

WARNINGFire extinguishers shall be readily availableduring all aircraft and marine loading andunloading operations.

WARNINGProper ventilation shall be provided whenloading and unloading. Prolonged exposureto carbon monoxide fumes may be fatal.

WARNINGVehicle shall not exceed three miles per hourinside aircraft, marine vessels, or on the load-ing ramps of rail or highway vehicles.

a. Travel Lock. Rocket pod latch assemblies shall bein the locked position for all modes of transportation.They extend beyond the side plane of the vehicle in the

unlocked position and may cause physical damage. Thetravel lock handle shall be swung aft and the quick releasepin shall be properly installed.

b. Air. The activity offering the vehicles for air trans-port shall inform the aircraft commander or designatedrepresentative:

(1) If ammunition or explosives are to be trans-ported within the vehicle.

(2) Whether liquid containers (fuel or water) areempty or full.

(3) Of the type of fuel in cookstove stored in rearsection of XM270 carrier frame.

(4) Vehicle fuel tanks shall not be more than three-fourths full.

c. Highway. Highway movement is subject to all safetylaws, rules, and regulations applicable to commercial car-riers. Overseas-area movements are governed by theaterregulations.

d. Water.(1) If ammunition or explosives are to be trans-

ported with the vehicle, the activity offering the vehiclefor transport shall notify the carrier. in compliance withAR 55-228.

(2) Ammunition and vehicles shall be handled andstowed in accordance with provisions contained in WaterCarrier Tariff No. 32 or reissues thereof.

(3) Fuel tanks shall not be more than one-fourthfull. (See note, paragraph 6-2.)

(4) The type of fuel in cook stove stored in rear sec-tion of XM270 carrier frame shall be identified.

e. Rail.(1)

shall no(2)

deck.(3)

Railcar controls, levers, valves, or accessoriesbe manipulated.Personnel shall not walk backwards on railcar

Gloves should be worn for handling wire rope.

3-1

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CHAPTER 4AIR TRANSPORTABILITY GUIDANCE

4-1. Scope

This chapter provides guidance for transporting theXM270 by US Air Force aircraft. lt covers technical andphysical characteristics and safety considerations and pre-scribes the materials and guidance required to prepare.load, tie down. and unload the XM270.

4-2. Maximum Use of Aircraft

The loads described in this section are not maximumloads. Total cargo loads and operating ranges are subjectto variables such as weather, airfield conditions, individ-ual aircraft characteristics, and distance. General guid-ance on total cargo loads and operating ranges are pro-vided in TM 38-236/AFP 71-8. Additional cargo and orpersonnel within allowable load limits and restrictions. pre-scribed by pertinent safety regulations. may be trans-ported.

4-3. Applicability

The XM270 is transportable by the C-141 and C-5Aaircraft. Procedures in this manual and those prescribedby Air Force Technical Orders lC-141A-9 and IC-5A9apply. The vehicle tiedown patterns are shown in figures4-1 and 4-2. The tiedown devices required. the locationof the tiedown points on the vehicle, the correspondingfittings to which the devices are secured, and the numberand capacity of devices are shown in tables 4-1 and 4-2.The restraint factors (g loads) for crew and passengersafety in the event of a controlled emergency landing areidentified in AR 70-47 and TO 1C-141A-9 and TO1C-5A-9.

4-4. Safety

Safety precautions are contained in chapter 3.

4-5. Preparation, Materials, Loading, andUnloading

a. Preparation. Each vehicle or component shall bechecked carefully to assure:

(1) That all loose items are properly secured withnylon cord or suitable substitute.

(2) That antennas are tied down or removed andhatches are in secured position.

(3) That all externally and internally stowed equip-ment is secure.

(4) That ammunition boxes and grenades are secure.(5) That the driver’s side window is secured open

before the XM270 is backed into the C-141 aircraft, asdriver cannot exit the vehicle with window closed.

(6) That the rear lift fittings are unbolted from insidethe aft vehicle body and installed below the cage assem-bly at the rear of the vehicle.

WARNINGLaunch Pod Containers (LP/C’s) with ortraining rounds shall not be installed on thelauncher for loading in the C-141 aircraft.They shall be palletized and loaded separately’.

WARNINGTM 38 250 (AFM 71-4) shall be consultedto assure comparability of additional cargo tobe loaded with the XM270.

b. Materials. Plywood strips or lumber for rolling andparking shoring are required to protect the aircraft floorand ramps during loading, flight. and unloading.

c. Loading into C-141 Aircraft.(1) The XM270 shall be backed into the aircraft to

the position indicated in figure 4-1.(2) The XM270 transmission range selector shall be

placed in neutral and brakes shall be set.(3) Tiedown shall be in accordance with the pattern

shown in figure 4-1 and the data given in table 4-1.

d. Loading into C-5A Aircraft.(1) The XM270 shall be backed into the aircraft to

the position indicated in figure 4-2.(2) The transmission range selector shall be placed

in neutral and brakes shall be set.(3) Tiedown shall be in accordance with the pattern

shown in figure 4-2 and the data given in table 4-2.

e. Unloading.(1) Procedures for unloading are the reverse of those

for loading.(2) The rear lift fittings shall be removed and stowed

in the aft vehicle body after unloading.

4-6. Internal and External Transport by USArmy Helicopters

The XM270 exceeds the size and weight for either inter-nal or external transport by US Army helicopters.

4-1

T C 5 5 - 1 4 2 5 - 6 4 6 - 1 4

Figure 4-1. Tiedown diagram for XM270 in US Air Force C-141 aircraft.

Figure 4-2. Tiedown diagram for xm270 in US Air Force C-5A aircraft.

4-2

Table 4-1. Tiedown Data for XM270 in US Air Force C-141 Aircraft

TC 55-1425-646-14

Table 4-2. Tiedown Data for XM270 in US Air Force C-5A Aircraft

Tiedown f i t t ing Tiedown device

desig- capaci ty capaci ty

n a t i o n in 1.000 lb type in 1,000 lb Attach to item

Tiedown f i t t ing Tiedown device

desig- capacity capaci t j

nat ion in 1,000 lb type in 1,000 lb Attach to item

G1

A 1

G 2

A 2

E 2

C 2

G 3

A 3

G 4

A 4

G 5

A 5

B5

F5

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 MB-2 25

10 MB-1 10

10 MB-1 10

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 MB-2 25

10 MB-1 10

10 MB-1 10

Left rear lift provision

Right rear lift provision

Left rear tiedown provision

Right rear t iedown prov is ion

Towing p int le

Towing p int le

Left front tiedown provision

Right front tiedown protvision


Right f ront t iedown prov is ion

Left front l ift provision

Right front lift provision



G1

A 1

E 2

C 2

F3

B 3

E3

C 3

F 4

B 4

E4

C 4

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 M B - 2 25

25 M B - 2 25

25 MB-2 25

25 MB-2 25

25 MB-2 25

25 MB-1 10

25 MB-1 10

Left rear lift provision

Right rear lift provision

Left rear tiedown provision

Right rear tiedown provision







Left front lift provision

Right Front lift provision

4-3

TC 55-1425-646-14

CHAPTER 5HIGHWAY TRANSPORTABILITY

GUIDANCE

5-1. Scope

This chapter provides guidance for transporting theXM270 over highways. It covers technical and physicalcharacteristics and safety considerations and prescribesthe materials required to prepare, load, tie down, andunload the XM270.

5-2. Applicability

a. The XM270 will be considered for road marchunder appropriate tactical situations only. It has a max-imum operating range of 300 miles (483 km) and a max-imum speed of 38 miles (61.2 km) per hour. Although itstracks are rubber padded, the XM270 shall not be movedover paved public highways without specific approvalfrom the federal, state, and or local authorities prior tomovement.

b. The XM270 loaded on semitrailers exceeds thewidth limitations in CONUS and oversea areas. Suchmovement over public highways in CONUS and overseaareas may be made only when other transport modescannot be used. In such cases, it normally can be trans-ported by military or commercial low-bed semitrailers ofadequate capacity. Special permits are required inCONUS (AR 55-162), and special routing ma) be re-quired overseas for outsize overweight shipments. Legallimitations of oversea areas are identified in “Limits ofMotor Vehicle Sizes and Weights,” International RoadFederation, 1023 Washington Building, Washington, DC20005.

5-3. Safety



a. Preparation. Antennas shall be tied down or re-moved, armor protection for windows shall be closed.mirrors shall be folded, and loose gear shall be securedwith nylon cord or suitable substitute.

b. Materials. Blocking and tiedown material (table 5-1)shall be provided by the shipping activity.

c. Loading.(1) The XM270 may be placed in the tiedown posi-

tion on a semitrailer by a crane of adequate capacity (22-ton minimum). It may be driven onto the semitrailer if asuitable ramp is available. When the XM270 is in tiedownposition, its transmission range selector shall be placed inneutral position and wire tied to prevent movement, andits parking brakes shall be set.

(2) Materials application and tiedown diagram toadequately restrain the load against forces encounteredat normal speeds and operating condition are shown infigures 5-1 and 5-2. Blocking and tiedown details aregiven in figure 5-3. A turning diagram for the truck-tractor-semitrailer combination is shown in figure 5-4. Abill of materials is shown in table 5-1, and guidance fortheir application is given in table 5-2.

Figure 5-1. Tiedown diagram for XM270 on M 172A1 semitrailer (side view).

5-1

TC 55-1425-646-14

Figure 5-2. Tiedown diagram for XM270 on M172A1 semitrailer

(end view).

Figure 5-3. Placement of shoring on M172A1 semitrailer before loading XM270.

5-2

TC 55-1425-646-14

F i g u r e 5 - 4 . B l o c k i n g a n d t i e d o w n d e t a i l d i a g r a m .

Table 5-1. Bill of Materials for Blocking and Tiedown of XM270 on M172A1 Semitrailer( f i g s 5 - 1 t h r o u g h 5 - 4 )

Approximate

Item Description quantity

Lumber Douglas fir or comparable. straight-grain. free from material

de defects, Fed Spec MM 1.

1- x 4-inch2- x 4-inch

2- x 6-inch

2- x 12-inch

6- x 6-inch

Nails Common. steel, flathead.

Fed Spec FF N 1058:

12d

2od

3od

751H:

bright or cement-coated. type Il. style 10.

plow steel: preformed. regular-lay. table X.Wire rope* 6 x 19. IWRC; improved

Fed Spec RR W 410C:

1/2-inch

Clamps* Wire rope. U-bolt clips, saddled. single-grip. steel. Crosby heavy-

duty, or equal, Fed Spec FF-N-1058:

1/2-inch

3/8-inch

Thimble* Standard. open type:

1/2-inch

15 linear ft

4 linear ft

120 linear ft

68 linear ft

32 linear ft

95

20130

90 ft

209

9

*Chains and load binders may be substituted.

5-3

TC 55-1425-646-14

Table 5-2 Application of Material for Blocking and Tiedown of XM270 on M172A1 Semitrailer(figs 5-1 and 5-2

I tem No. required Appl icat ion

A 3 Brace (fig 5-3). Each layer consists of three pieces Of 2- x 6- x 64-inch lumber. Place

the first piece across semitrailer, even with the forward edge of the wheel well, with

one end 32 inches from the center Iine of the trailer. Nail to trailer with 12d nails

spaced approximately 8 inches apart, in staggered pattern.

CAUTIONDo not attempt to nail in the trailer’s metal frame.

Place the second brace parallel to and 93 inches from the first brace, and nail with

12d nails. Place the third brace parallel to and 60 lnches from the second brace,

and nail with 12d nails. Repeat tor next two layers, nailing the second and third

Iayers with 30d nails.

B 2

C 2

D 2

E 2

G 10

H * 2

I* 1

J * 2

Riser (fig 5-3). Each consists of tour pieces of 2- x 12-inch lumber. Place one piece of

96-inch lumber even with the aft edge of Item A next to the wheel well. Insure that

item B contacts approximately half of the end of the middle Item A. Press Item B

firmly against both items A and nail with 12d naills In a staggered pattern Butt

one piece of 108-inch lumber to the end of the 96-inch lumber. Press item B firmly

against both items A and nail with 12d nails In a staggered pattern. Place two Iike

pieces (one 96-inch and one 108-inch) alongside the first pieces, and nail with 12d

nails through the inboard 4 inches. (The outboard part of the second pieces of

item B cover the outside metal frame of the trailer.) Repeat the above for the

opposite side of the trailer.

Upper board layers for 'H' frame. Each consists of two pieces of 2- x 6- x 168-inch

lumber. Place one piece against item A and on top of item B for second layer, as

in figure 5-3, and nail with 30d nails in a staggered pattern. Repeat for third layer.

Repeat above for opposite side.

Block (detail 1, fig 5-4). Each consists of six pieces of 2- x 12- x 23-1/2-inch lumber

cut as shown in detail 1. Nail pieces together with four 12d nails in each piece.

Place the block on item B, with the heel 17 inches trom the trailer gooseneck and

5 inches from side of trailer. Toenail blocks in place with three 20d nails in each

side. Nails should be driven 6 inches from each end and one in the middle of each

side, starting the nail near a 60-degree angle, 1-1/2 inches from the bottom.

End cleat. Each consists of two pieces of 2- x 4- x 12-inch Iumber. Press one piece

firmly against the heel of item D, and nail with four 20d nails. Nail the second

piece to the first with three 30d nails.

Lift or drive the XM270 onto the semitrailer unit it rests firmly against the blocks,

item D, and set the brakes.

Road wheel b locks. Each consists of two pieces of 6- x 6-inch lumber cut to fit

between road wheels 2-3, 3-4, and 4-5. Place on block on the outside part of the

track and one block on the inside part of the track.

Tie cleat. Use two pieces of 1- x 4- x 14-inch lumber across the top of each set of F

blocks between road wheels 2-3 and 4-5. Use one piece across the top of blocks

between road wheels 3-4. Nail each cleat with two 12d nails in each block.

Wire rope. Each consists of one piece of 1/2-inch wire rope, Iength as required. Form

a complete loop between the lift fitting on the XM270 to the tiedown provision on

top of the gooseneck of the semitrailer. Wire rope ends should overlap a minimum

of 24 inches. Place one thimble, item L, at the lift fitting and one at the tiedown

provis ion. Repeat for opposite side.

Wire rope. One piece of 1/2-inch wire rope, length as required. Form a complete loop,

with 24-inch overlap, between towing pintle and the center tiedown provlsion at

the rear of the semitrailer. Place one thimble, item L, at the tiedown provision (not

required for pintle).

Wire rope. Each consists of one piece of 1/2-inch wire rope, length as required. Form

a complete loop, with 24-inch overlap, between the aft tiedown fitting on the

XM270 and the outside tiedown provision on the rear of the semitrailer. Place one

thimble, item L, at the aft tiedown fitting and one at the tiedown provisions.

Repeat for opposite side.

5-4

TC 55-1425-646-14

Table 5-2. Application of Materials for Blocking and Tiedown XM270 on M172A1 Semitrailer(figs 5-1 and 5-2)-Continued

Item No. required Application

K * 29 Place four 1 /2 - inch c lamps on each wireClamps (twenty 1/2-inch and nine 5/8-inch).rope at the overlap area and space 3-1/2z inches apart, with a minimum of 6 inches

from each end of wire rope (detail 2, fig 5-4). Tension wire rope and tighten

clamps to 35-40 foot-pounds torque. Use one 5/8-inch clamp to secure each thim-

ble, item L, to wire rope at both lift fittings and both tiedown fittings on the

XM270 and one at each tiedown provision on semitrailer (detail 3, fig 5-4).

L * 9 Thimbes. Place one thimble on wire rope at each lift and tiedown fitting on the

XM270 and one at each tiedown provision on the semitrailer.

*Chains and loadbinders may be substituted for items H, I, J, K, and L.

5-5

TC 55-1425-646-14

CHAPTER 6MARINE AND TERMINAL

TRANSPORTABILITY GUIDANCE

6-1. Scope

This chapter provides guidance for transporting theXM270 by marine mode. It covers technical and physicalcharacteristics and safety considerations and prescribesthe materials and guidance required to prepare, load, tiedown and unload the XM270.

6-2. Applicability

The XM270 can be transported by a variety of inland-waterway cargo carriers and lighters and by all seagoingvessels. Whenever possible, the XM270 vehicles shouldreceive the protection of below-deck stowage. Good stow-age of vehicles means placing them fore and aft as closetogether as practical, with minimum spacing betweenouter vehicles and the sweat boards; protecting breakableparts; placing armor protection for windows; stowingspare parts usually within or near the vehicles; stowingvehicles in neutral with brakes on; disconnecting batteryterminals; draining fuel; and securing vehicles by adequateblocking and lashing. Securing includes: blocking trackson all four sides so that the vehicle cannot move in anydirection; bracing individual vehicle blocks to bulkheads,stanchions, and other vehicle blocks; and lashing vehiclewith wire rope or chain.

NOTEThe methods described in this chapter for lift-ing and securing vehicles are recommendedprocedures. Other methods of handling andstowing may be used provided they will insuresafe delivery without damage.

NOTEWhen vehicles are loaded on vessels that areadequately ventilated by power blowers, suchas the roll-on/roll-off vessels, fuel tanks neednot be drained.

6-3. Safety



a. Preparation. The XM270 shall be loaded on vesselsin its minimum reduced height configuration. It can beloaded onto landing craft, beach discharge and amphib-ious lighters, and landing ships under its own power orby crane of adequate capacity (22-ton minimum). It canalso be loaded under its own power onto the decks ofbarges from a pier when tidal conditions are suitable andramps are available. lt can be loaded onto seagoing ves-

sels by shoreside or floating cranes of adequate capacity.Jumbo booms and heavy-lift ship’s gear may be used toload the XM270 onto vessels. It can be loaded onto roll-on/roll-off vessels under its own power or can be towed.See figure 6-1 for typical lifting diagram. Vehicle tracksshould be equipped with rubber pads. Vessel deck surfa-ces should be dry and free of grease or debris.

b. Materials. Materials required for the specific vesselbeing loaded are identified in the following paragraphs.

c. Loading.(1) Cargo vessel. Typical blocking and tiedown de-

tails for securing the XM270 on general-cargo vessels areshown in figure 6-2. Materials and their application arelisted in tables 6-1 and 6-2.

(2) Special design. All seatrain trailer vessels, roll-on/roll-off vessels, landing ships, and attach-cargo ves-sels are equipped with patented lashing gear and pre-posi-tioned fittings in the deck. By proper application of pat-ented lashing gear (as shown in fig 6-3), blocking andbracing is not required. Vehicle tracks should be equippedwith rubber pads.

(3) Barges and lighters. When the XM270 is to bemoved by barge or similar lighterage to or from vesselssecured to piers or a sheltered anchorage, blocking andchocking material is required. If the XM270 is to bemoved extended distances or through rough waters, tie-downs must also be used.

(4) Landing ships, landing craft, and amphibiousvehicles. When the XM270 is to be moved extended dis-tances or through rough waters, blocking and tiedownsmust be used. Most vessels are equipped with turnbuck-les with a sheep’s-foot on one end that fits into a deckcloverleaf; where not provided, a suitable substitute maybe used.

(5) Lighter Aboard Ship (LASH).(a) Armored tracked vehicles may arrive at the

processing area with hatches padlocked shut to preventpilferage. Since these vehicles cannot maneuver undertheir own power, their tracks are not braked and trans-missions are set in the neutral position to permit towingin the loading area. Contrary to normal stowage oftracked vehicles on cargo vessels, the idler wheel chocks,when positioned by crane in their final stow location,should be in place. Shoring usually is not used beneaththe trends of tracked vehicles with rubber pads. Frictionforces between the pads and the deck are sufficient tomake it unnecessary.

(b) Floating barges noticeably tilt when heavyitems are placed aboard them. Tracked vehicles shouldbe loaded by placing one at one end and the next at theother end. This process should be repeated until all are

6-1

T C 5 5 - 1 4 2 5 - 6 4 6 - 1 4

F i g u r e 6 - 1 . L i f t i n g d i a g r a m f o r X M 2 7 0 b y u s e o f s i x - l e g g e d s l i n g a n d s p r e a d e r b a r .

6 - 2

TC 55-1425-646-14

Figure 6-2. Typical blocking and tiedown of XM270 in hold of general-cargo vessel.

Figure 6-3. Rear view of XM270 tied down on RORO ship showingtypical securement with patented lashing.

6 - 3

TC 55-1425-646-14

loaded. If center of balance cannot be centered in thebarge, vehicles should be loaded side by side facing op-posite directions.

(c) The XM270 may be adequately blocked andbraced with 6- x 8-inch timbers. lf the load orientationpermits, blocking maybe installed as a separator betweenthe vehicle track and the barge bulkhead. Blocking usu-ally is installed in front of and in rear of the tracks, andthe bracing part is force-fitted to the bulkhead. Loading,

blocking, and bracing begin from the outer areas of thebarge toward the center, which is loaded last. A singleseparator timber is installed against the tracks of the vehi-cle, and the next vehicle loaded is placed firmly againstthe timber. The vehicles shall be secured with wire ropeand turn buckles as shown in figure 6-4. The void arearemaining in the center of the barge after the final vehiclehas been loaded shall be filled (fig 6-5) by cut and force-fitted blocking.

Table 6-1. Bill of Material.Y, for Blocking and Tiedown of the XM270 inHold of General-Cargo Vessel (fig 6-2)

A p p r o x i m a t e

I t e m D e s c r i p t i o n q u a n t i t y

Nai ls

L u m b e r D o u g l a s - f i r o r c o m p a r a b l e . s t r a i g h t - g r a i n , f r e e f r o m m a t e r i a l

d e f e c t s , F e d S p e c M M - L - 7 5 1 :

4- x 6-inch

2.- x 10-inch

6- x 8-inch

C o m m o n , s t e e l , f l a t h e a d , b r i g h t o r c e m e n t - c o a t e d ; t a b l e X 1 - b , F e d

Spec FF-N-105: 20d

40d

Wire rope 6 x 1 9 , I W R C ; i m p r o v e d p l o w s t e e l ; p r e f o r m e d , r e g u l a r - l a y ; t a b l e X ,

F e d S p e c R R - W - 4 1 0 : 1 / 2 - i n c h

C l a m p s W i r e r o p e , U - b o l t c l i p s , s a d d l e d , s i n g l e - g r i p , s t e e l , C r o s b y h e a v y -

duty, or equal; MIL-STD-16842: 1/2-inch

Pad eyes Local manufacture from 1-Inch steel rod and 4- x 6- x 5/8-inch steel

p l a t e . B o r e l - i n c h h o l e s t h r o u g h p l a t e a n d w e l d U - s h a p e d 1 - i n c h

r o d e n d s t o p a n d b o t t o m o f p l a t e

T u r n b u c k l e s T- x 18-inch with jaw and jaw endfittlngs

4 linear ft

72 linear ft

120 linear ft

20

116

40 f t

16

4

4

Table 6-2. Application of Materials for Blocking and Tiedown of XM270 in

Hold of General-Cargo Vessel (fig 6-2)

I t e m No. requ i red A p p l i c a t i o n

A 4

B 2

C 2

D 4

E 4

F 4

G 4

H 16

I as r equ i red

Lumber, 2- x 10- x 216-inch. Pre-position on floor of vessel hold under vehicle

t r e a d s ; t w o p i e c e s r e q u i r e d u n d e r e a c h t r e a d , ( N O t u sed i f t r a cks have rubbe r

p a d s . )

S i d e b l o c k i n g . E a c h c o n s i s l s o f o n e p i e c e o f 6 - x 1 8 - i n c h x l e n g t h - t o - s u i t l u m b e r .

L o c a t e a g a i n s t o u t s i d e o f v e h i c l e t r e a d s ; o n e p i e c e o n e a c h s i d e o f v e h i c l e .

E n d b l o c k i n g . E a c h c o n s i s t s o f o n e p i e c e o f 6 - x 8 - i n c h x l e n g t h - t o - s u i t l u m b e r .

L o c a t e o n t o p o f i t e m B a g a i n s t v e h i c l e t r e a d s ( f r o n t a n d r e a r ) . T o e n a i l t o i t e m

B w i t h f o u r 4 0 d n a i l s a t e a c h e n d .

Backup c l ea t s , 4 - x 6 - x 12-inch lumber. Locate on top of Item B against item C.

T o e n a i l t o i t e m B w i t h f o u r 4 0 d n a i l s .

P a d e y e . F o u r r e q u i r e d o n f l o o r o f v e s s e l .

T u r n b u c k l e , 1 - x 1 8 - i n c h . A t t a c h o n e j a w t o w i r e r o p e , i t e m G , a n d o t h e r j a w t o

p a d e y e , i t e m E . T i g h t e n t u r n b u c k l e s e v e n l y .

W i r e r o p e , 1 / 2 - i n c h , i n a c o m p l e t e l o o p . S e c u r e w i t h c l a m p s ( i t e m H ) . A t t a c h t o

f r o n t a n d r e a r s h a c k l e s a n d t o t h e t u r n b u c k l e s .

C l a m p . 1 / 2 i n c h . S e c u r e t o i t e m G i n c o m p l e t e l o o p .

B r a c i n g , 6 - x 8 - i n c h x I e n g l h - t o - s u i t l u m b e r . B r a c e a s r e q u i r e d a g a i n s t v e h i c l e

b l o c k i n g , s i d e o f v e s s e l , o r a d j a c e n t c a r g o b l o c k i n g t o i m m o b i l i z e v e h i c l e a n d

b l o c k i n g . S e c u r e e a c h e n d t o a d j a c e n t b r a c i n g o r b l o c k i n g b y t o e n a i l i n g w i t h

40d na i l s .

6-4

T C 5 5 - 1 4 2 5 - 6 4 6 - 1 4

Figure 6-4. Typical loading of five XM270s on a LASH (59.9 ft by 29.5 ft), by use of wire rope, cable clips, and turnbuckles, with blocking betweenvehicles and between vehicles and hull.

Figure 6-5. Filling center void or XM270-to-hull void area.

6-5

TC 55-1425-646-14

CHAPTER 7RAIL TRANSPORTABILITY GUIDANCE

7-1. Scope

This chapter provides guidance for transporting theXM270 by rail. It covers technical and physical charac-teristics and safety considerations and prescribes the ma-terials and guidance required to prepare, load, tie down,and unload the XM270.

7-2. Applicability

The guidance for transporting the XM270 by railway isbased on a flatcar width of 10 feet and on other special-purpose railcars of adequate capacity. Consideration isgiven to single and multiple movements on the types offlatcars normally used for movement of this vehicle with-out sectionalization or major disassembly. Additionalcargo, as approved by the activity offering the items fortransport, may be transported with the vehicles.

7-3. Safety


7-4. Preparation, Materials, Loading, andUnloading— CONUS Railways

a. Preparation. Antennas must be tied down or re-moved, armor protection for windows closed, mirrorsfolded, and loose gear secured with nylon cord or suita-ble substitute. If the XM270 is to be driven on the rail-

car, the window protection shall be left open until afterloading.

b. Materials. Materials for loading the vehicle ontoflatcars are provided in the respective figures and tablesfor the type of flatcar used. Special-purpose railcar-tie-down equipment is identified for the type of car discussed.

c. Loading, The XM270 may be placed in the tiedownposition on a railcar by a crane of adequate capacity (22-ton minimum). Also, it may be driven or towed onto therailcar if a suitable ramp or bridge is available.

(1) General-purpose flatcar. The load illustrated infigures 7-1 and 7-2 is based on a flatcar width of 10 feet.Detailed instructions for blocking and tiedown are shownin figure 7-3. A bill of materials is provided in table 7–1and application of those materials for securing theXM270 on general-purpose flatcars is presented in table7-2.

NOTEA staggered nailing pattern should be usedwhen lumber or laminated lumber is nailed tothe floor of a railcar. The nailing pattern foran upper piece of lumber should be adjusted,as required, so that a nail for that piece willnot be driven into or against a nail in thelower piece of lumber.

Table 7-1. Bill of Materials for Blocking and Tiedown of XM270 on General-Purpose Flatcar

figs 7-1, 7-2, and 7-3)

ApproximateItem Description quantity

Wire rope

Clamps

Thimbles

Nails

Lumber Douglas-fir or comparable, straight-grain, free from materialdefects, Fed Spec MM-L-751:

2- x 4-inch2- x 6-inch2- x 12-inch 6- x 6-inch

6 x 19, IWRC; improved plow steel; preformed, regular-lay, table X,Fed Spec RR-W-410: 5/8-inch

Wire rope, U-bolt clips, saddled, single-grip, steel, Crosby heavy-duty, or equal; MIL-STD 16842: 5/8-inch

3/4inch

Standard, open-type: 5/8-inch

Common, steel; flathead; bright or cement-coated; table XI-b, FedSpec FF-N-105: 16d

20d30d

30 linear ft80 linear ft36 linear ft40 linear ft

200 ft

3214

14

80296160

7-1

TC 55-1425-646-14

Table 7-2. Application of Materials for Loading and Securing XM270 General-Purpose Flatcars(figs 7-1, 7-2, and 7-3)


A

B 3

-

C 2

D 2

E 2

F4

G 8

H 2

1 2

J 2

K 2

L 8

M 32

N 12

O 6

P 10

Brake-wheel clearance. Minimum clearance required is 6 inches above, in back of,and on both sides of, and 4 inches underneath wheel.

Brace (item B, detail 1, fig 7-3). Each layer consists of three pieces of 2- x 6- x64-inch lumber. Locate the first piece across deck of flatcar, with one end 32inches from center line of flatcar and nail with 20d nails. Place the second pieceparallel to, and 78 inches from. the first piece and nail with 20d nails. Place thethird piece parallel to, and 79 inches from, the second piece and nail with 20dnails. Repeat for second layer and nail the top Iayer with 30d nails.

Brace (item C, detail 1, fIg 7-3). Each layer consists of two pieces of 2- x 6- x168-inch lumber. Place one piece firmly against the ends of items B and nailwith 20d nails. Place the second piece on top of the first and nail with 30d nails.Repeat for the opposite side.

Chock block (detail 2, fig 7-3). Fabricate from 2- x 12-inch lumber. Laminatepieces using four 16d nails in each piece. Place firmly against center part of theforward ends of the tracks and toenail each side with three 20d nails.

Chock block (detal 3, fig 7-3). Fabricate from 2- x 12-inch lumber. Laminatepieces using four 16d nails in each piece. Place firmly against center part of theaft ends of the tracks and toenail each side with three 20d nails.

End cleats. Each consists of two pieces of 2- x 12- x 12-inch lumber. Place oneagainst each item D and E. Secure the lower piece to floor with four 20d nailsand the top piece to the one below with four 30d nails.

Side cleats. Each consists of one piece of 2- x 4- x 18-inch lumber. Place one oneach side of items D and E, Secure to the floor with four 20d nails.

Wire rope, 5/8 inch. Attach one complete loop through the towing pintle and stakepocket. Place a thimble between wire rope and bottom edge of stake pocket.Tension wire rope and apply four cable clamps, item M. Apply one cable clamp,item N, to each thimblem, item L (detail 4. fig 7 3).

Wire rope 5/8 inch. Attach one complete loop through stake pocket and tiedownshackle, Place a thimble, item L, between wire rope and shackle and betweenwire rope and bottom of stake pocket. Tension wire rope and apply four cableclamps, item M.

Wire rope 5/8 inch. Attach one complete loop through stake pocket and tiedownshackle; complete as in item I.

Wire rope 5/8-inch. Attach one complete loop through stake pocket and tiedownshackle; complete as in item I.

Thimble 5/8-inch. Place under wire rope at a sharp radius or square edge to protectrope.

Clamp 5/8-inch. Secure the ends of the wire rope with four clamps each. Place clampsa minimum of 4 inches apart and from ends of wire rope (detail 5, fig 7-3).

Clamp 3/4-inch. Secure each thimble, Item L, in place with one clamp (detail 4, fig7-3).

Road wheel chocking. Each consists of two pieces of 6- x 6-inch x length-to-suitlumber, cut to fit between road wheels 2-3, 3-4, and 4-5 (detail 6, fig 7-3). Placeone piece between inside wheels and one piece between outside wheels of eachset 2-3, 3-4, and 4-5 of both tracks.

Tie cleat, 2- x 4-inch x length-to-suit lumber. Locate on top of Item O (inside andoutside) and secure with four 20d nails.

7-2

TC 55-1425-646-14

Table 7-3. Application of Chain Tiedown for Securing XM270 onto Flatcars Equipped withCushioned Rub-Rails (Fig 7-4)


A - Brake--wheel clearance. Minimum clearance required is 6 inches above, in back of,and on both side of, and 4 inches underneath wheel (fig 7-4).

B 8 ea unit Device. USe the Brandon silngle-chain tiedown device 1/2-inch diameter Excel-Ioy chain or similar, proof-tested to 27,500 lbs. Attach chain to the shackle onthe vehlcle and to the car rub-rail (detail 1, fig 7-4). Items C and D may besubstituted for Item B.

C 4 ea unit Chain with turnbuckle. Attach chain and turnbuckle to the shackle on the vehicleand to the car rub-rail (detail 2, fig 7-4). All four on one end of the vehicle.

D 4 ea unit Chain. Attach chain to the shackle on the vehicle and to the rub-rail (detail 3, fig7-4). All Four on one end of the vehicle.

Figure 7-1. Blocking and tiedown diagram of XM270 on CONUS general purpose flatcar (side view).

Figure 7-2. Blocking and tiedown diagram of XM270 on CONUS

general-purpose flatcar (end view).7-3

TC 55-1425-646-14

Figure 7-3. Blocking and tiedown detail diagram

(2) Special-purpose flatcars. Special-purpose G85and G89 cushioned rub-rail or similar types of flatcars

are suitable for transporting XM270s. The flatcar shown

in figure 7-4 is equipped with special heavy-duty tiedowndevices and two cushioned rub-rails running the lengthof the car on each side of the center sill. Materials andtheir application for securing vehicles on cushioned rub-rail flatcars are presented in table 7-3. Brakes shall not

be set and blocking shall not be used.

(3) Conventional chain tiedown cars (without thecenter rub-rail). Conventional chain-tiedown cars usually

are equipped with four parallel channels that run the fulllength of the car deck: two channels are near the centerline of the car, about 30 inches apart, and the other two

channels run along the outer edges of the car deck. Thesechannels are recessed so that the top is flush with thedeck surface, and each channel contains numerous (usu-

ally 8 to 12) chain anchors, each of which has an attached10- or 12-foot chain. The chain anchors can be moved

along the channels and locked in place where needed, At

the free end of each chain is a hook, which is passedthrough the tiedown shackle of the vehicle, is pulled

handtight, and is hooked back onto the chain. Tension isthen applied to the chain either by tightening a Turnbuckle

built into the chain or by turning a ratchet or screw jackin the anchor block. A 3/4-inch square-drive, Heavy-duty

ratchet or hinge-handle is needed to tighten the chain at

the anchor blocks. Where 1/2-inch chain (proof-tested to

27,000 pounds) is provided, four pairs of chain tiedowns

(eight chains total) are sufficient to secure a XM270 onthe railcar. Both front and rear tiedowns should be ap-

plied at approximately a 45-degree angle. Chains tromthe inner channels shall be crossed. Chains from the outer

channels shall not be crossed. Hooks shall be wire tied to

the chains.

7-4

TC 55-1425-646-14

GENERAL INSTRUCTIONS

Loading rules 1A, 3, 4, 5, 7, 9, 14, 15, 19, and 19A, section I of the Rules Governingthe Loading of Commodities on Open-Top Cars and Trailers, published by the Asso-ciation of American Railroads, provide applicable guidelines and shall be followed.

I

Figure 7-4. Tiedown diagram of XM270s on cushiuoned rub-rail or similar types of flatcars.

GENERAL INSTRUCTIONS

1. Shippers should specify cars equipped with tiedown devices in the quantity shownin item B above when ordering specialized railroad equipment. If conventional chaintiedowns are provided in lieu of the tiedown devices specified in item B above, theymust conform to the requirements of items C and D and must be applied as follows:

a. Attach the four chain tiedowns (detail 3, fig 7-4), item D, to one end of theXM270 and to the car tiedown facility. Pull as tight as possible by hand, and attachchain hook to an appropriate link and wire tie.

b. Attach the four chains with turnbuckles, item C (detail 2, fig 7-4) to the oppo-site end of the XM270 and to the car rub-rail. All four chain tiedown turnbucklesshall be evenly tightened to apply tension to tiedowns on both ends of the XM270.Turnbuckles shall be wire tied or locked to prevent them from turning during transitunless the turn buckles are equipped with self-locking devices.

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TC 55-1425-646-14

NOTELoadbinders are not to be used in lieu of turnbuckles to tension tiedownchains.

2. XM270s shall be faced in the same direction and be uniformly spaced along thelength of the car to allow sufficient space at each end of car and between the vehiclesfor tiedown, Tiedowns shall be applied parallel to each other at the same end of thevehicle and down from the vehicle point of attachment to the car rub-rail, The angleof the tiedown chain must not be greater than 45 degrees.

3. XM270s weighing up to 44,000 Ibs each, in the quantities of three, can be loadedon 85-ft or longer, cushioned rub-rail equipped cars or similar railroad flatcars withcenter tiedown positions running the entire length of the car.

4. General rules 4, 5, 7, and 19a, section I of the Rules Governing the Loading ofCommodities on Open Top Cars and Trailers,can Railroads, provide applicable guidelines

7-5. Preparation, Materials, Loading, andUnloading— Foreign Railways

The guidance contained in this section shall apply when

published by the Association of Ameri-and shall be followed.

India, and Pakistan. Because of the height of the XM270,transporting the XM270 on foreign railways. Considera-tion is given to single and multiple movements on thetypes of railcars normally used for the transport of thistype of equipment. Because of the various designationsystems used by different countries, foreign railcars aredifficult to classify. Clearances vary between countriesand within a country. Consequently, evaluation of trans-port capability must be made on an individual basis. TheXM270, with the launcher-loader module installed, ex-ceeds unrestricted limits within European countriescomplying with the passe-partout international (PPI)guage railways; this also applies to most countries in theMiddle East and South America, as well as Australia,

special clearance will be required from local railway au-thorities. In the Middle East and South America theclearances vary, and each country will require a separatecheck. In Australia, India, and Pakistan, wide-or broad-guage railways provide greater clearances and fewer re-strictions. The preparation, materials, loading, and unload-ing required for blocking and tiedown of the vehiclesonto foreign-service flatcars are essentially the same asthose used in CONUS. Dimensions, load capacity, andother data for several flatcars available in Europe, as wellas detailed guidance for securing vehicles onto these cars,are contained in the 4th Transportation CommandPamphlet 55-2, Tiedown Guide for Rail Movement.

7-6

TC 55-1425-646-14

APPENDIX A

CONVERSION TABLES

1. Common Metric Abbreviation.m = meterdm = decimetercm = centimeter

2. Linear Measure.1 mi = 1,609.35 m1 yd = 0.9144 m1 ft = 0.3048 m1 in = 0.0254 m

3. Surface Measure.1 sq yd = 0.8361 sq m1 sq ft = 0.0929 sq m1 sq in = 0.00065 sq m

4. Cubic Measure.1 cu yd = 0.7655 cu mI cu ft = 0.02831 cu mI cu in = 0.000016 cu m

5. Weight.1 STON = 907.185 kg1 lb = 0.45359 kg

kg = kilogramkm = kilometert = metric ton

1 km = 0.6214 mi1 m = 1,0936 yd1 m = 3,2808 ft1 m = 39.3700 in

1 sq m = 1.196 sq yd1 sq m = 10,764 sq ftl sq m = 1,550 sq in

1 cu m = 1.31 cu yd1 cu m = 35.30 cu ft1 cu m = 61,023 cu in

1 kg = 2.2046 lb1 t = 1,000 kg1 t = 2,204.62 lb

6. The following simplified conversion factors are accurate to within 2 percent forquick computations:

a. Inches to centimeters -Multiply in. by 10 and divide by 4.

b. Yards to meters-Multiply yd by 9 and divide by 10.

c. Miles to kilometers -Multiply mi by 8 and divide by 5.

d. Pounds to kiograms-Multiply lb by 5 and divide by 11.Paragraph 7-37, FM 55-15, and paragraph 2-15, TM 55-450-15, contain additionaldetailed conversion factors.

7. The following conversions are provided for guidance when procuring lumber, wirerope, or wire in areas that use the metric system. Lumber sizes are rounded off tonearest 1/2 cm.

a. Lumber.2-in. x 4-in. x desired length = 5-cm x 10-cm x desired lengthl-in. x 6-in. x desired length = 2.5-cm x 15-cm x desired length6-in. x 8-in. x desired length = 15-cm x 20-cm x desired lengthl-in. x 12-in x desired length = 2.5-cm x 30-cm x desired length (length normally

expressed in ft or m)

b. Wire rope.3/8-in. dia = 9.5-mm dia 7/8-in. dia = 22.2-mm dia1/2-in. dia = 12.7-mm dia l-in. dia = 25.4-mm dia5/8-in. dia = 15.8-mm dia 1 1/4 -in. dia = 31.7-mm dia3/4-in. dia = 19.0-mm dia 1 1/2-in. dia = 38.1-mm dia

Round off to next higher whole mm of available wire-rope sizes.

c . Wire. No. 8 gauge annealed (11 64-in. dia) = 4.37-mm dia. Round off as in babove.

A-1

TC 55-1425-646-14

APPENDIX BREFERENCES

1. Army Regulations (AR)55-29 Military Convoy Operation in CONUS.55-162 Permits for Oversize, Overweight, or Other Special Military Movements on Public Highways

in the United States.55-228 Transportation by Water of Explosives and Hazardous Cargo.55-355 Military Traffic Management Regulation.70-47 Engineering for Transportability.385-40 Accident Reporting and Records.746-1 Packaging of Army Materiel for Shipment and Storage.

2. Army Field Manuals (FM)5-36 Route Reconnaissance and Classification.55-9 Unit Air Movement Plan.55-13 Air Transport of Supplies and Equipment: Standard Loads in Air Force C-5 Aircraft.55-15 Transportation Reference Data.55-17 Terminal Operations Coordinator’s Handbook.

3. Army Supply Bulletins (SB)700-20 Army Adopted/Other Items Selected for Authorization/List of Reportable Items.

4. Army Technical Bulletins (TB)55-45 (AFP 76-19) Certification of Military Equipment for Transport in MAC/CRAF Aircraft.55-46-1 Standard Characteristics (Dimensions, Weight, and Cube) for Transportation of Military Ve-

hicles and Other Outsize/Overweight Equipment.

5. Army Technical Manuals (TM)5-725 Rigging.38-236 (AFP 71-8) Preparation of Freight for Air Shipment.38-250 (AFP 71-4) Packaging and Materials Handling: Preparation of Hazardous Materials for Military Air

Shipment.55-450-10/1 Air Transport of Supplies and Equipment: Standard Loads in US Air Force C-130 Aircraft.55-450-10/2 Air Transport of Supplies and Equipment: Standard Loads in US Air Force C-141 Aircraft.55-500 Marine Equipment Characteristics and Data.750-244-6 Procedures for Destruction of Tank-Automotive Equipment to Prevent Enemy Use (US Army

Tank-Automotive Command).

6. Air Force ManualsTO 1-1B-40 Handbook of Weight and Balance Data.TOTOTO

IC-5 A-9 Loading Instructions, USAF Series C-5 Aircraft.1C-130A-9 Loading Instructions, USAF Series C-30 Aircraft.1C-141 A-9 Loading Instructions, USAF Series C-141 Aircraft.

NOTEAir Force technical orders that have not been integrated into the Department of theArmy publications system may be requisitioned through the Adjutant General’s Office inaccordance with AR 310-71.

7. Other Publications and Sources of Procurementa. Rail and Highway Shipment

(1) Code of Federal Regulations, Title 49–Transportation, Parts 170-179Available from: Superintendent of Documents

US Government Printing OfficeWashington, DC 20402

(2) Association of American Railroads Rules Governing the Loading of Commodities on Open-Top Cars andTrailers

Section No. 1—General Rules

B-1

TC 55-1425-646-14

Section No. 6—Rules Governing the Loading of Department of Defense Materiel on Open-Top Cars.Available from: Secretary, Mechanical Division

Association of American RailroadsATTN: J.H. Bean59 E. Van Buren StreetChicago, IL 60605

(3) R. M. Graziano’s Tariff No. 32 (or reissues thereof) Hazardous Materials Regulation of the Department ofTransportation, Including Specifications for Shipping Containers

Available from: R. M. Graziano, Agent1920 L Street NWWashington, DC 20036

(4) American Trucking Association, Inc., Agent Publication ICC ATA III-A/FMC F1-17 (or reissues thereof)Department of Transportation Regulations Governing Transportation of Hazardous Materials by Motor, Railand Water, Including Specifcations for Shipping Containers

Available from: James C. Harkins, Issuing Officer1616 P. Street NWWashington, DC 20036

(5) International Road Federation Limits of Motor Vehicle Sizes and WeightsAvailable from: International Road Federation

1023 Washington BuildingWashington, DC 20005

b. Water Shipment(1) Code of Federal Regulations

Title 46—Shipping, Part 146Available from: Superintendent of Documents

US Government Printing OfficeWashington DC 20402

(2) Agent R. M. Graziano’s Water Carrier Tariff No. 32 (or reissues thereof)Regulations Governing the Transportation or Storage of Explosives or Other Dangerous Articles or Substances,and Combustible Liquids Onboard Vessels

Available from: R. M. Graziano, Agent1920 L Street NWWashington, DC 20036

8. Department of TransportationSpecial Permit No. 3498USCG 108 Rules and Regulations for Military Explosives and Hazardous Munitions

9. Military SpecificationMIL-S-22824B Sling, Multiple Leg, Vehicle (Shipboard Loading).

*U. S. GOVERNMENT PRINTING OFFICE: 1982 - -505-028/134

B-2

By Order of the Secretary of the Army:

Official:

E. C. MEYERGeneral, United States Army

Chief of Staff

ROBERT M. JOYCEMajor General, United States Army

The Adjutant General

DISTRIBUTION:To be distributed in accordance with DA Form 12-34B, Requirements for TM 55 Series: Transportability Guidance:

Missile Systems and Related Components and Track Vehicles.

PIN: 051604

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